Shelby Miller has decided to undergo Tommy John surgery.
Miller, who was also diagnosed with a flexor strain, had been evaluating his options, which included trying to rehab the injury through non-surgical options.
"It's the best decision I think we could make," Miller said
Miller is 2-2 with a 4.09 ERA in four starts this season. He went 3-12 with a 6.15 ERA in 2016.